Are there nonstop flights from Osaka (KIX) to Detroit (DTW)?

No. The fastest connection is via Tokyo, about 13h 38m of total flying time.

What is the fastest connection from Osaka (KIX) to Detroit (DTW)?

via Tokyo ≈ 13h 38m, via Toronto ≈ 13h 55m, via Vancouver ≈ 14h 2m (estimated flying time, excluding layovers).

from 27,500 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Kansai International Airport (KIX) to Detroit Metropolitan Wayne County Airport (DTW)・10,630 km

No nonstop flights. The fastest connection is via Tokyo (HND), about 13h 38m of flying time (layover not included).

With milesANA 27,500 miles+ (via SFO)JAL 47,000 miles+ (via CDG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

12 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.